We must create a platform to unite the economic and social struggle among the ranks of the workers and the poor, to unite all of the oppressed sections of society.

我们必须架设一个平台，将工人和劳苦大众展开的经济权益斗争及社会权益斗争联合，并团结社会上所有的被压迫群体。

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But Professor Roth says even the best political leaders cannot unite a country once a society's problems get out of control.

VOA: special.2009.12.19

Governments, donors and civil society need to unite and demonstrate a high level of support for the Sanitation and Water for All partnership (SWA).

FORBES: CEO of WaterAid America David Winder Calls For More Public Education On Water Issues

Dr. Pagel's explanation is that, since language serves the interests of the group, when a new tribe splits off from the rest of a society, the people in the new tribe deliberately differentiate themselves the better to unite.

WSJ: Matt Ridley on the Ideas in Mark Pagel's Wired for Culture | Mind & Matter